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Graph Tech

collapse expand iconDescription

The Graph Tech Ratio 6-in-line electric guitar tuning machine heads incorporate different string gauges into the tuning equation. Graph Tech balanced the gear ratios to each string, simplifying the tuning process. With Ratio, a half turn is a semi-tone. Every string reacts the same to any tuning adjustments, delivering predictable, precise tuning on every string. The Graph Tech PRN-2721 is a right-handed set of Ratio calibrated machine heads for electric guitars that use 6-in-line tuners. It has a two-pin casing that can be used as is, or with Graph Tech’s InvisoMatch mounting plates. Four different sets of InvisoMatch mounting plates in brushed aluminum are included to make installation on most guitars fast and accurate by using your existing screw mounting holes.
Graph Tech Ratio 6-In-Line Electric Guitar Tuning Machine Heads Black 6 String

collapse expand iconFeatures

  • Includes 6 machine heads, mounting screws and bushings
  • Includes 4 complimentary sets of aluminum mounting plates

collapse expand iconSpecs

  • Gear ratio: 39:1, 24:1, 20:1, 35:1, 20:1, 12:1
  • Peg holes diameter required: 13/32" (10mm)
  • String post diameter: 0.236" (6mm)
  • String post length to string hole: 0.890" (22.6mm)
  • String diameter up to 72 gauge

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Reviewed by 1 customers

  • Dual pin mounts don't fit Fender

    3

    submitteda year ago

    byBrad

    fromNevada, USA

    The 2-pin cases on these don't align with Fender 2-pin holes, so an additional adapter plate not included in the 4 sets of "complimentary" adapter plates is necessary.

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Have a question about this product? Our expert Gear Advisers have the answers.

  • submitted9 months ago

    asked byJames

    fromPortland Oregon

    If I were to order this, which would I get? Pictured is the PRN-2731 (classic button style), but the listing says it is the PRN-2721 (contemporary mini button style). I would definitely like to know before purchasing.

    If I were to order this, which would I get? Pictured is the PRN-2731 (classic button style), but the listing says it is the PRN-2721 (contemporary mini button style). I would definitely like to know before purchasing.

    Open Reply - Gear-Support
    I apologize for the inconvenience. We do not have that information currently available and we are waiting on an update from the web team.